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Raytheon Technologies selected by the Department of Energy to test H2 and ammonia as clean power fuel sources

Raytheon Technologies has been selected by the U.S. Department of Energy for two research and development projects to test the use of H2 and ammonia as effective, zero-carbon options for electricity generation.

"These projects are the latest examples of how we're partnering with the Department of Energy to innovate the technologies that will power a cleaner, more sustainable future," said Andreas Roelofs, director of the Raytheon Technology Research Center, the company's central advanced research and development innovation hub in East Hartford, Connecticut.

Under the first project, Raytheon Technologies will validate the capacity to operate Mitsubishi Power Aero's FT4000 gas turbine unit using H2 and H2 blends as fuel sources. The FT4000 is a land-based variant of Pratt & Whitney's PW4000™ turbofan aircraft engine.

"Hydrogen has an important role to play in enabling the aviation industry's pathway to net zero emissions, and we are focused on developing technologies to maximize the potential opportunities that this zero-carbon fuel source provides," said Geoff Hunt, senior vice president for Engineering and Technology at Pratt & Whitney.

The H2 fuel test will complement other work occurring in another development project called the H2 Steam Injected, Inter-Cooled Turbine Engine (HySIITE) project. HySIITE, also supported by the Energy Department, is a Pratt & Whitney-led effort to develop H2-fueled propulsion technology applicable to single-aisle commercial aircraft.

Raytheon Technologies will work with the University of Connecticut School of Engineering on the second Energy Department project to focus on the use of ammonia – which is composed of mostly H2 – as a zero-carbon fuel for power-generating turbines. Using ammonia presents several advantages including a pre-existing production and transportation infrastructure that requires much less refrigeration in comparison to H2, and the ability to easily store it as a liquid.